Well, right answer could be B (Writing engaged hum so thoroughly that the passing weeks seemed like days) as you can see the word "engaged" is placed instantly after "had" meaning she was a sort of forced to hold the attention of wedding planner
The third one, it’s the most detailed one and actually gives an explanation on the topic
A noun phrase consists of words that function as a noun. The sentence that uses a noun phrase as the object of a preposition is: Johnny will take them all to the south flea market. The correct answer would be option A. The preposition in this sentence is "to" and the object of the preposition is "south flea market" and this is an example of a noun phrase.